KitchenAid Gourmet Essentials Hard-Base Ceramic Mini Oval Au Gratins, Set of 2 2 mini au gratins made of heavy-gauge aluminum with colored enamel exterior Nonstick interior with "hard base" ceramic primer for exceptional food release Generous, dual-riveted side handles constructed from cast stainless steel Wash by hand; oven-safe to 500 degrees F Measures 7 by 5 inches; limited lifetime warranty